the resource is incredible but some things are missing for example you can add food and water because players like me who stay in one place is to say a ceiling killing zombies is boring and also the map seems to have nothing happened in half zombie apocalypse I think that with safe places and not so safe in the cities besides destruction in the streets it would give another atmosphere to the good game that's what I have. If you want I could help you with the map I have experience in the map editor.
PD:
good job what you created is original